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NSWPhysicsModule 6: Electromagnetism

Quick questions on Electromagnetic induction: HSC Physics Module 6

2short Q&A pairs drawn directly from our worked dot-point answer. For full context and worked exam questions, read the parent dot-point page.

What are eddy currents?
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When a bulk conductor (a sheet, disc or block of metal) experiences a changing flux, induced EMFs drive circulating currents called eddy currents inside the conductor. They oppose the change in flux that produced them, so they exert a drag force on whatever is causing the flux change.
What is the induction coil?
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An induction coil is a transformer-like device used to produce high-voltage pulses from a low-voltage DC source. It has:

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